Apparatus for producing and treating viscose threads or artificial silk.



A. DELUBAG. APPARATUS FOR PRODUGINGANI) T EATING VISGOSE THREAD$ 0R ARTIFICIAL SILK.

' APPLIQA'L 9N FILED JULY 5,1907. 923,777, Patented June 1. 1909.

2 SHEETS-SHEET 1.

I A. DELUBAC. APPARATUS FOR PRODUCING AND TREATING VISCOSE THREADS 0R ARTIFICIAL SILK.

' APPLICATION I'IIIED JULY 5,1907.

923,777. I i Patented June 1, 1909.

2 SHEETS-SHEET 2.

zaznessfis 1 I [2621 12207? A ao Aueus'rs n iiLUB c, or LA isneunn, FRANCE, .Ass'Ie IsTAfrnsrAT-EN OFFICE.

VISCOSE, OF PARIS, FRANCE, A CORPQRATION OF FRANG NOR TO SOCIETE FRANGAISE DE LA A?PABAT US' FOR rnonoome ann'rnna'rme vIscosE THREADS on ARTIFICIAL sILx.

i No. 923,777.

To all whom it mar concern: l

. Be itjkn own. that I, AUGUSTE DELUBAC, a citizen of the French Republic, residing at' La Bgude, Department of Ardeche, France, have inventedcertain new and useful Ir'nprovements in Apparatus for Producing and lreatlng Viscose: hreads or Artificial Silk, of which the followin is aspecification. I This invention has or its object a mech anism or apparatus for producing and treating,

. in separate threads, viscose obtained by treating cellulose with soda, sulfid of carbon and water. The thread obtained possessesa dye-absorbing power-far su erior to that of viscose threa obtained by the former means.

Theth read asfiproduced-by the apparatus, ed has a unlformity of tone,

hereinafter speci .the twisting-of-the thread being done after the fining process, the elementary sta les retain-a certain amount of elasticity anr do'not [constitute fixed s irals as in the case of thread twisted be ore the fixin rocess, as obtalned by the old means. This as the recellulose.

spectively of one of the feed rollers of the apsult that to weave a given surface a lesslengthof'thesame thread is required.- The sup leness of the thread is obtained naturally wit out the addition of any chemical product Whateverin the baths or in the solution of By simply regulating the air pressure, the

standard of fineness desired to be spun is obtained automatically arid conse uentlyit is poss1ble to manufacture much finer threads than by the old means. A great number of handlings of the'thread in skein form are done away with, resultiri in a diniinution of the Waste and-bf the-ris of stripping the thread. I igure 1 of the accompanying drawin' sis a diagrammatic view-showin the general arfor carrying. out

aratus: Fig. 4 iis a frontview of the drier. 1 .5 1s.a sectlonal'view of the drier. i he solutlon of cellulose termed viscose is contained in a closed reservoir 1'; from this reservoir it is forced by the pressure of compressed air admitted'by a pipe 3. The pipe 2 conveys theviscose'from the reservoir 1 to a draw-.- late 4 immersed in a coagulating bath 5. T e 1pc 2 is fully openand the sup 1y is regulate solely by the constancy o the pressure ofthe compressed air. The thread i I Specifleationof Letters Patent. application filed July 6, 1907. Serial'No. 382,350.

advantage in the spinning of viscose.

Patented June 1, 1909.

as soon as it'has become c agulated in the bath 5 passes successively into the baths 6, 7 and 8. Bath 6 consists of water acidulatod with 7 of sulfuric acid at a temperature of U. The effect of this bath is to render the thread insoluble in'water. Bath 7 consists of water at the ordinary temperature,

with intense circulation, and isintended for the washing of the thread. Lastly, bath 8 containswater, ordinary soap, oil and soda intended to complete the neutralization of the thread and prevents its adhering to the eing themselves equal; moreover it is possible to control the temperature of the viscose up to the. pointwhere the pipes issue above the'floor of the workshop, which IS a Igreat 11 its passage through the different baths the thread is supported by power-driven rollers 9, the circumferential speed of which is 'ex- 7 actly equal to the sieed of the thread. These rollers are flute to facilitate the detachment of the thread from their surfaces.

I Duringthe passage of the/thread from one bath to another, the thread contacts with or rubs against any suitable means such as a rubber sponge to remove the excess of liquid taken up and to cause itto fall back into the bath. On leaving the bath 8 the thread passes over one or.mo're driers 10 similar to those used in paper-making.

A special device is rovided with the ob-' ject of enabling the t read to be caused to take several turns round the same drier as shown by Figsfi l and 5. After each revolution the threadleaves the drier and passes around ap'ower-driven shifter roller 11 that gives it a fresh position on the drier 10 not" co nciding with that of theprevious revolution. A number of the rollers" 11 are shown supported on a shaft l'l and, as will be seen,

the said rollers maintaimthecoils of thread 1'10:

Infseparated condition as to facilitate dryper minute.

ing of the same and maintain them in their desired individual construction. 10 is mounted to overhang on a pillar 16, and is provided with an interior warming device 15 through which circulates any suitable heating medium. The drier, hereinbefore noted, is a well known construction but is eX- ceptionally efl'ective in drying the threads when the shifter rollers 11 are used therewith as shown. On finally leaving the drier or driers the thread is wound on a bobbin 12, the twisting and skeining being afterward effected by the ordinary means. Several threads can be manufactured simultaneously on the same machine by means of the same arrangements, by keeping such threads separate.

The rollers 9 are mounted to over-hang at one end of their axis 13 (Figs. 2 and 3). One or more of the fiutings as shown by Fig. 2 is or are prolonged beyond their front faces to form one or more projecting knobs 14, five or six millimeters high. The object of these knobs is to facilitate the process of starting. The workman, holding the thread in his right hand, takes hold of it again with his left hand so as to follow approximately the rate at which it is being fed forward. At the same time he brings this thread close to the roller 9 on which it has to runa nd without letting it go he causes it to be engaged by one of the knobs. The'thread mounts at once of its own accord onto.v the flutings and the workman, always keeping the end in his hand continues to follow the thread as it is supplied, taking it up again and passing on to the following roller. A workman of average skill is easily able in a short time to pass the end of the thread over the whole machine when running at a speed of 60 to meters Having thus described and ascertained the nature of the invention and in what manner the same may be performed, what is claimed is:

- 1. In an apparatus of the class specified, a

v scosereservoir, a plurality of successive baths, one of the baths adjacent to the reservoir havin a draw-plate means therein, a compresse air duct communicating with the reservoir, a tubular connection between the reservoir and draw-plate means for feeding the latter with viscose, and a drier having shifter rolls cooperating therewith to'sep arate the coils of viscose thread passing from the.

The drier 4. In an apparatus of the class specified,

a plurality of baths containing coagulating, acidulated washing and neutralizing liquids, the coagulating bath having draw-plate means therein, means for su plying viscose to the draw-plate means un or pressure, directing rollers between the several baths having fluted surfaces, and a drier on which the thread is wound after leaving the final bath.

5. In an ap iaratus of the class specified, a plurality of aths containing coagulating, acidulated washing and neutralizing liquids, the coagulating bath having draw-plate means therein, means for'su )plying viscose to thedraw-plate means um er pressure, directing rollers between the several baths having surface flutings partially provided with projecting knob means, and a drier over which the thread. passes from the last bath.

6. In an apparatus'of the class specified, a plurality ofthread treating baths containing coagulating, acid ulated washing and neutraland forming a viscose threa in one of the baths, the thread being drawn through the successive baths,a lurality of rollers interposed between the athsiand having a circumferential speed similar to that of the s eed of movement of the thread passing thereover, anda rotatable drier for receiving the thread directly from the final bath and completing, its formation by coiling the same. 7. In an'appa'ratus of the class specified, the combination of a plurality of baths containin coagulating, acidulated washing and neutra izing liquids, means for supplying viscose to and forming a viscose thread in one of the baths, the viscose; thread being drawn regularly through the successive baths, and rotatable drier forv receiving the thread directly from the final bath and operating to cause the thread to take several turns therearound while in wet condition to dry the individual coils of the thread. I

' 8. In an apparatus of the class specified, the combination with viscose thread forming means and coagulatin washing, and neutralizing baths through w ich the viscose thread is successively drawn, of a drier around which the thread is wound, the drier directly receiving thethread from the final bath, the drier being provided. with means for holding the coils of the thread separated thereon.

9. In an apparatus of the class specified, the combinatlon of a plurality of baths successively containing coagulating, acidulated washing and neutralizing liquids, the final bath containing the neutralizing liquid,

10. Inanapparatusof the class specified,

the combinatlon of-'a plurality of baths for 10 treating a'v'isco'sethread, a plurality of direction rollersinterpcsed between the baths and having surface flutings artially projected in the form of guidin kno s, and means for reeeiving the threa after it passes from the final bath.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

AUGUSTE DELUBAO. Witnesses: PIERRE DEFAUCAMBERGE,

EMILE KLo'rz, 

